diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2026-03-09 12:39:18 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-11 05:54:06 +0300 |
| commit | 7a6387dec8cee5a237dc5092269e97028f5a983b (patch) | |
| tree | a694e7c7214b72efeb01f51ee7a9f3261c5ce0b8 /include/linux | |
| parent | 1a6ca6497a40f5c7795575a35f0da7d013b79bdd (diff) | |
| download | linux-7a6387dec8cee5a237dc5092269e97028f5a983b.tar.xz | |
net: stmmac: provide plat_dat->dma_cfg in stmmac_plat_dat_alloc()
plat_dat->dma_cfg is unconditionally required for the operation of the
driver, so it would make sense to allocate it along with the plat_dat.
On Arm64, sizeof(*plat_dat) has recently shrunk from 880 to 816 bytes
and sizeof(*plat_dat->dma_cfg) has shrunk from 32 to 20 bytes.
Given that dma_cfg is required, and it is now less than a cache line,
It doesn't make sense to allocate this separateny, so place it at the
end of struct plat_stmmacenet_data, and set plat_dat->dma_cfg to point
at that to avoid mass changes.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Link: https://patch.msgid.link/E1vzX54-0000000CVrw-2jfu@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/stmmac.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 965ada809fdf..919196713c05 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -306,5 +306,6 @@ struct plat_stmmacenet_data { int msi_tx_base_vec; const struct dwmac4_addrs *dwmac4_addrs; unsigned int flags; + struct stmmac_dma_cfg __dma_cfg; }; #endif |